I was taking the train to my destination. I had to make a transit at one of the stations and then got on a bus. After a few hours, I got off at another station. I quickly looked for a tourist centre using my mobile phone.  I noticed that in many places in France, there are pianos in the train station where people come and go. Online google, this is a "a vous de jouer" (You're playing off) piano, as long as you are confident in your own piano skills, you can play on the public piano while waiting for your ride.